GetProcessDefaultLayout

// USER32.dll
#include <windows.h>

BOOL GetProcessDefaultLayout(
    DWORD* pdwDefaultLayout
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetProcessDefaultLayout(
    <Out> ByRef pdwDefaultLayout As UInteger   ' DWORD* out
) As Boolean
End Function

' pdwDefaultLayout : DWORD* out
Declare PtrSafe Function GetProcessDefaultLayout Lib "user32" ( _
    ByRef pdwDefaultLayout As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetProcessDefaultLayout = ctypes.windll.user32.GetProcessDefaultLayout
GetProcessDefaultLayout.restype = wintypes.BOOL
GetProcessDefaultLayout.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # pdwDefaultLayout : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetProcessDefaultLayout = Fiddle::Function.new(
  lib['GetProcessDefaultLayout'],
  [
    Fiddle::TYPE_VOIDP,  # pdwDefaultLayout : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn GetProcessDefaultLayout(
        pdwDefaultLayout: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true)]
public static extern bool GetProcessDefaultLayout(out uint pdwDefaultLayout);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetProcessDefaultLayout' -Namespace Win32 -PassThru
# $api::GetProcessDefaultLayout(pdwDefaultLayout)

#uselib "USER32.dll"
#func global GetProcessDefaultLayout "GetProcessDefaultLayout" sptr
; GetProcessDefaultLayout varptr(pdwDefaultLayout)   ; 戻り値は stat
; pdwDefaultLayout : DWORD* out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "USER32.dll"
#cfunc global GetProcessDefaultLayout "GetProcessDefaultLayout" var
; res = GetProcessDefaultLayout(pdwDefaultLayout)
; pdwDefaultLayout : DWORD* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL GetProcessDefaultLayout(DWORD* pdwDefaultLayout)
#uselib "USER32.dll"
#cfunc global GetProcessDefaultLayout "GetProcessDefaultLayout" var
; res = GetProcessDefaultLayout(pdwDefaultLayout)
; pdwDefaultLayout : DWORD* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetProcessDefaultLayout = user32.NewProc("GetProcessDefaultLayout")
)

// pdwDefaultLayout (DWORD* out)
r1, _, err := procGetProcessDefaultLayout.Call(
	uintptr(pdwDefaultLayout),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetProcessDefaultLayout(
  pdwDefaultLayout: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetProcessDefaultLayout';

result := DllCall("USER32\GetProcessDefaultLayout"
    , "Ptr", pdwDefaultLayout   ; DWORD* out
    , "Int")   ; return: BOOL

●GetProcessDefaultLayout(pdwDefaultLayout) = DLL("USER32.dll", "bool GetProcessDefaultLayout(void*)")
# 呼び出し: GetProcessDefaultLayout(pdwDefaultLayout)
# pdwDefaultLayout : DWORD* out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。